Chapter 4.1, Problem 4.3E

(a)

To determine

To describe the overall pattern of the relationship in words from the graph given in the question.

Explanation of Solution

By looking at the graph in the question we see that there seems to be a linear pattern, because most of the data points seem to form a line. And there are three outliers A, B and C.

(b)

To determine

To find out the IQ and GPA for student A.

Answer to Problem 4.3E

IQ is about $103$ and the GPA is about $0.5$ .

Explanation of Solution

By looking at the graph given in the question, we found out that the student A, IQ is about $103$ and the GPA is about $0.5$ .

(c)

To determine

To find out how are the points A, B and C are unusual.

Explanation of Solution

By looking at the graph in the question we see that the points A, B and C are unusual as,

A is unusual because A has an average IQ score but a low GPA.

B is unusual because B has an little over average IQ but a low GPA.

C is unusual because C has a low IQ but a high GPA score.